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  • Title: The SUVmax of 18F-FDG PET correlates with histological grade in endometrial cancer.
    Author: Nakamura K, Kodama J, Okumura Y, Hongo A, Kanazawa S, Hiramatsu Y.
    Journal: Int J Gynecol Cancer; 2010 Jan; 20(1):110-5. PubMed ID: 20130510.
    Abstract:
    OBJECTIVES: The objectives of this study were to assess the maximum standardized uptake value (SUVmax) of F-fluorodeoxyglucose (F-FDG) by a primary tumor of endometrial cancer with the use of positron emission tomography/computed tomography (PET/CT) and to assess its association with the clinical importance of the disease. METHODS: F-fluorodeoxyglucose PET/CT scan was performed on 44 participants within 2 weeks before surgery. F-fluorodeoxyglucose uptake was quantified by calculating the SUVmax. The distribution of cases that scored positive for each of the biological parameters examined was correlated with the SUVmax of the F-FDG PET/CT and the glucose transporter-1 expression status obtained by immunohistochemistry. RESULTS: The mean SUVmax of the primary endometrial cancer tumors was 17.6 (range, 3.04-34.74). There were significant correlations between the SUVmax of the primary tumor and the International Federation of Gynecology and Obstetrics (FIGO) grade (P < 0.001), maximum tumor size (P < 0.001), and glucose transporter-1 expression (P < 0.001). Furthermore, multivariate analysis showed that the FIGO grade was most significantly identified as a relation factor of SUVmax (> or =17.6) for endometrial cancer (P = 0.017). The present findings indicate that a significant relationship was seen between the SUVmax and the FIGO grade in endometrial cancer. CONCLUSION: We propose that the primary tumor's SUVmax obtained from F-FDG PET/CT may be associated with aggressive biological characteristics in endometrial cancer.
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